Learn
about the types of relationships
found between organisms on a coral reef in PBS's
"Coral
Reef Connections" activity.

View
this "Carbon
Cycle Diagram," read about it,
and answer the questions from
thisTeacher's
Domainis activity (You must
register for free to access).

Watch
the "Ancient
Farmers of the Amazon" video
about the symbiotic relationship
between
Leafcutter ants and the fungi on which they feed along with another
surprising
relationship. This is also from Teacher's
Domain,
and includes
questions about the video.

"Food
Chain" is actually a food
pyramid simulation that allows you
to change
the populations of organisms at various levels of the pyramid to see
the
results.

Use the
"Microcosmos" guide
while having
your students view the movie MicroCosmos
(which can be purchased for $14.99 at Amazon.com).
And have them do this "Microcosmos Video Worksheet" and
"Microcosmos Video
Activity" from
Jessica Stelzner of the NSTA
Listserve.